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Explain data dictonary on oracle ? Data Dictionary - Data dictionaries are the system tables in which contain descriptions of the database objects and how they are structured.
Drawbacks of Data Distribution: The primary drawbacks of distributed database systems are the added complexity needed to ensure proper coordination between the sites. This increas
why are older data models are being replaced by new data models
Type of views : Simple views and Difficult Views Feature Simple Views Complex Views Number of tables One
What is entity in DBMS? Entity: A DBMS entity is either a thing in the modelled world or a drawing element in an ERD.
Concurrency Identification While designing analysis, model we map real world model into our analytical model. Real life objects are simultaneous in nature, but all the design
Explain Superkey Ans: A superkey is described in the relational model of database organization like a set of attributes of a relation variable for which it holds that in all re
What is called query processing? Query processing refers to the range of activities included in extracting data from a database.
The functions of DBA ?
Determine the steps of path in association network You can analyse use of paths in association network in the following steps: Examine every operation and see what asso
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